Solve.
= 
A. 
B. 
C. 
D. ?
Answer: A
Mathematics
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Expand and simplify the given expression by use of Pascal's triangle.(-2x - 1)5
A. 32x5 + 80x4 + 80x3 + 40x2 + 10x + 1 B. -32x5 + 80x4 - 80x3 + 40x2 - 10x + 1 C. -32x5 - 80x4 + 80x3 - 40x2 + 10x - 1 D. -32x5 - 80x4 - 80x3 - 40x2 - 10x - 1
Mathematics
Use the figure to find the following.
? 
A. 
B. 
C. 
D. 
Mathematics
Evaluate.
4
A. - 
B. 16
C. -16
D. 
Mathematics
Use the given information to find the exact value of the trigonometric expression.sin ? = 
; The terminal side of ? lies in Quadrant I.
Find cos 2?.
A. 
B. - 
C. 
D. - 
Mathematics